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NTIS 바로가기韓國鑛物學會誌 = Journal of the Mineralogical Society of Korea, v.29 no.3, 2016년, pp.141 - 153
임으뜸 (공주대학교 지질환경과학과) , 유봉철 (한국지질자원연구원) , 신동복 (공주대학교 지질환경과학과)
The Manjang deposit is emplaced in Hwajeonri formation comprising limestone that is interbeded with slate and phyllite in the central Okcheon Group. It consists of the Main and the Central orebody of Cu-bearing hydrothermal vein deposit and the Western orebody of iron skarn deposit. Based on coexist...
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만장광상은 어떻게 구분되는가? | 만장광상은 옥천층군 중앙부에 분포하는 석회암을 모암으로 점판암과 천매암이 협재된 화전리층 내에 배태된 광상으로서 함동맥상광상인 본광체와 중앙광체, 그리고 철스카른광상인 서부광체로 구분된다. 철스카른화 작용은 공생하는 광물군에 따라서 전기 스카른화 작용(I기 : 단사휘석 ${\pm}$ 자철석 ${\pm}$ 석영, II기 : 석류석 + 단사휘석 ${\pm}$ 자철석 ${\pm}$ 석영)와 후기 열수변질작용(III기 : 자철석 + 각섬석 + 석영 ${\pm}$ 석류석 ${\pm}$ 단사휘석 ${\pm}$ 녹니석 ${\pm}$ 녹염석 ${\pm}$ 형석 ${\pm}$ 방해석, IV기 : 형석 ${\pm}$ 자류철석${\pm}$ 황동석 ${\pm}$ 각섬석 ${\pm}$ 석영 ${\pm}$ 방해석)으로 구분된다. | |
만장광상은 어떤 광상인가? | 만장광상은 옥천층군 중앙부에 분포하는 석회암을 모암으로 점판암과 천매암이 협재된 화전리층 내에 배태된 광상으로서 함동맥상광상인 본광체와 중앙광체, 그리고 철스카른광상인 서부광체로 구분된다. 철스카른화 작용은 공생하는 광물군에 따라서 전기 스카른화 작용(I기 : 단사휘석 ${\pm}$ 자철석 ${\pm}$ 석영, II기 : 석류석 + 단사휘석 ${\pm}$ 자철석 ${\pm}$ 석영)와 후기 열수변질작용(III기 : 자철석 + 각섬석 + 석영 ${\pm}$ 석류석 ${\pm}$ 단사휘석 ${\pm}$ 녹니석 ${\pm}$ 녹염석 ${\pm}$ 형석 ${\pm}$ 방해석, IV기 : 형석 ${\pm}$ 자류철석${\pm}$ 황동석 ${\pm}$ 각섬석 ${\pm}$ 석영 ${\pm}$ 방해석)으로 구분된다. | |
스카른광상에서 스카른광물의 다양성을 유발하는 유인은 무엇인가? | 스카른광상은 탄산염암을 모암으로 하는 지층에 화성암체가 관입되어 스카른광물을 형성하는 접촉교대작용의 산물이다. 스카른화 작용은 화성암체와 탄산염암의 접촉부에서부터 모암쪽으로 가면서 진행되며, 열수유체와 모암과의 반응에 따라 석류석, 휘석 등을 포함한 다양한 광물들이 발달하게 된다(Einaudi et al., 1981; Meinert, 1998). 이러한 변화는 모암의 조성, 스카른이 형성되는 깊이, 화학적 성질 등에 따라서 다양하게 나타날 수 있다(Zaw et al., 2000; Zurcher et al. |
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